Smoke_savage-- I put it at the highest I could figuring it would help with the draw. I've been cooking on this alot since I built it, the top shelf is about 50 degrees hotter then the bottom. I don't know how the stack being farther in would affect it if it would make it hotter or not. What is the advantage to making stack at grill level?
12Ring-- That's what i used, rust-o-leum high heat. No i didn't cover it... I recommend covering it mine has rust on it now. I will have to wire wheel and paint again once i put up a cover for it.

All in all this is a great smoker! Really efficient and I think I have it dialed in pretty well. But.....I Have a 30"x 50" pipe and a 24" x 29" pipe for firebox coming through by means of my brother so the next one is going to be on a trailer! probably start next one in the next few months.

Well here is the material just dropped off by my brother in law. Unbelievably awesome! He must really like my BBQ! 30" .375 thick 12' long and 24" .375 thick pieces. I will start a new thread on this build. I am going to be looking for help with experience on warmer boxes. Other things too.

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Since you want a warmer, you might just consider going square for firebox and warmer and making them out of one piece. I know it’s hard to no use free material but a round warmer is not ideal and a square warmer on a round firebox is difficult.

But great score...I’ll take 6 foot of the 30” if you decide. It to use it!

The inside racks are 23"x48"bottom 17"x48"top. I put a 6" dia pipe for stack. This one is really efficient. The top rack gets hotter then bottom by almost 70° not sure how I could fix that. Thought about a small vent but not sure. Side by side is within 5° with some plates I put in to hold some heat at the far end away from FB. Honestly for first build it was a huge success. Now looking to build two more as I think one of my co-workers wants to buy the 80 gallon.